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LOUISVILLE, KY. (WDRB) -- Students at North Harrison High School set out this morning to break a world record while learning about math.
March 14th is known as "Pi Day," because the mathematical unit Pi begins with 3.14.
More than 650 students packed the school's gym and each one held a piece of paper with one of the infinite numbers of Pi. Their goal was to break the Guinness World Record for the largest number of people holding up signs showing the digits of the math symbol.
Teachers say the effort was organized by the AP Calculus class at the school.
North Harrison High School teacher Jeremy Shireman says, "What if we tried to have each student hold a number -- and that way we could make a long chain and they would have a better understanding of what Pi is, and get them excited about math.
Some of the teachers and students dressed up like Albert Einstein for the event, because March 14th also happens to be the scientist's birthday.